Rice Breeding in Latin America

Martinez César. P, Torres Edgar A., Châtel Marc, Mosquera Gloria, Duitama Jorge, Ishitani Manabu, Selvaraj M., Dedicova Beata, Tohmé Joe, Grenier Cécile, Lorieux Mathias, Cruz Maribel, Berrío Luis, Corredor Edgar, Zorrilla de San Martin Gonzalo, Breseghello Flavio, Peixoto Orlando, Colombari Filho Jose Manoel, Pereira de Castro Adriano, Iraçu Gindri Lopes Sergio, Barbosa Mara, Daltrozzo Funck Gustavo Rodrigo, Blanco Pedro H., Perez de Vida Fernando B., Molina Federico, Rosas Juan, Martínez Sebastián, Bonnecarrere Victoria, Garaycochea Silvia, Carracelas Gonzalo, Marin Alfredo, Correa-Victoria F.J., Camargo Ismael, Bruzzone Carlos Bernardo. 2014. Rice Breeding in Latin America. In : Plant Breeding Reviews: Volume 38. Janick, J. (ed.). Hoboken : Wiley-Blackwell, 187-277. (Plant Breeding Reviews, 38) ISBN 978-1-118-91683-4

Résumé : Rice breeding has made important contributions to Latin America. More than 400 cultivars were released from 1975 to 2012, which helped to raise total production to >27 million tonnes obtained from 5.7 million hectares (average for 2010-2012). Rice production provides ?US$8.8 billion for thousands of farmers in Latin America and the Caribbean (LAC). The result of higher yields in the irrigated sector was to triple rice production in LAC while area did not grow, thus preserving more fragile environments. Several estimates on genetic gains for grain yield have been carried out in LAC. In temperate irrigated rice, the estimates are around 1.5-2.6% per year. In the tropical irrigated, it is ?1% and in the upland rice the estimate is ?1.4% per year. Different breeding strategies, including pedigree, modified bulk, recurrent selection methods, anther culture, interspecific crosses, composite populations, quantitative trait loci (QTL) introgression, and recombinant inbred lines, accompanied by shuttle breeding schemes, direct seeding, and evaluation/selection in hot spots for main diseases are being used by CIAT and NARES in the region. In this process, methods for screening for diseases and other stresses were established. Networking has been a cornerstone for success and several networks such as INGER, FLAR, and HIAAL were created. Looking forward, as farmers' yields are approaching the genetic yield potential exhibited by current cultivars, as a result of improved agronomic management, a new breakthrough is needed in terms of more productive cultivars. To achieve this goal, a strategy is needed that includes strong pipelines focused on specific environments and markets; better product profiling; integration between discovery, development, and delivery; and new breeding strategies using cuttingedge technologies and new breeding methods to accelerate genetic gains.

Mots-clés Agrovoc : Oryza

Mots-clés géographiques Agrovoc : Amérique latine

Classification Agris : F30 - Génétique et amélioration des plantes
F01 - Culture des plantes
H01 - Protection des végétaux - Considérations générales

Champ stratégique Cirad : Axe 1 (2014-2018) - Agriculture écologiquement intensive

Auteurs et affiliations

• Martinez César. P, CIAT (COL)
• Torres Edgar A., CIAT (COL)
• Châtel Marc, CIAT (COL)
• Mosquera Gloria, CIAT (COL)
• Duitama Jorge, CIAT (COL)
• Ishitani Manabu, CIAT (COL)
• Selvaraj M., CIAT (COL)
• Dedicova Beata, CIAT (COL)
• Tohmé Joe, CIAT (COL)
• Grenier Cécile, CIRAD-BIOS-UMR AGAP (COL) ORCID: 0000-0001-5390-8344
• Lorieux Mathias, IRD (FRA)
• Cruz Maribel, FLAR (COL)
• Berrío Luis, FLAR (COL)
• Corredor Edgar, FLAR (COL)
• Zorrilla de San Martin Gonzalo, FLAR (COL)
• Breseghello Flavio, EMBRAPA (BRA)
• Peixoto Orlando, EMBRAPA (BRA)
• Colombari Filho Jose Manoel, EMBRAPA (BRA)
• Pereira de Castro Adriano, EMBRAPA (BRA)
• Iraçu Gindri Lopes Sergio, IRGA (BRA)
• Barbosa Mara, IRGA (BRA)
• Daltrozzo Funck Gustavo Rodrigo, IRGA (BRA)
• Blanco Pedro H., INIA (URY)
• Perez de Vida Fernando B., INIA (URY)
• Molina Federico, INIA (URY)
• Rosas Juan, INIA (URY)
• Martínez Sebastián, INIA (URY)
• Bonnecarrere Victoria, INIA (URY)
• Garaycochea Silvia, INIA (URY)
• Carracelas Gonzalo, INIA (URY)
• Marin Alfredo, INTA (ARG)
• Correa-Victoria F.J.
• Camargo Ismael, IDIAP (PAN)
• Bruzzone Carlos Bernardo

Source : Cirad - Agritrop (https://agritrop.cirad.fr/575285/)

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